Wyniki wyszukiwania

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Glucosylation of hydroquinone to arbutin by hairy roots of Physalis ixocarpa

100%

Bergier K., Polaszczyk B., Gajewska E., Wielanek M., Krolicka A., Sklodowska M.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2008

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tom 524

P. ixocarpa hairy root cultures were obtained after the transformation with A. rhizogenes strain ATCC 15834. The ability of P. ixocarpa hairy roots to biotransform HQ to arbutin was examined. The roots were treated 3 times with the same HQ concentration on 3 consecutive days or every 3 days. Despite these differences the highest arbutin yield and the highest biotransformation ratio were similar in both variants, 13.1 and 14.4 mg·25 cm⁻³ of the cultures and 67.6% and 70.6%, respectively. However, in the case of shorter intervals between treatments the highest levels of these parameters were achieved earlier. Multiple treatment of lower HQ concentration reduced its harmful effects on root biomass growth.

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Arbutin formation by hairy roots of Physalis ixocarpa treated with hydroquinone

100%

Bergier K., Polaszczyk B., Wielanek M., Gajewska E., Krolicka A., Sklodowska M.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

3

Arbutin production in Ruta graveolens L. and Hypericum perforatum L. in vitro cultures

84%

Piekoszewska A., Ekiert H., Zubek S.

Acta Physiologiae Plantarum

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2010

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tom 32

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nr 2

Optimization of conditions for hydroquinone biotransformation into its β-ᴅ-glucoside, arbutin, in agitated shoot cultures of Ruta graveolens L. and Hypericum perforatum L. allowed us to obtain a maximum content of this important therapeutic and cosmetic product of 7.8 and 7.2% (dry weight), respectively. These contents are higher than respective values required for standardization of known arbutin-containing plant raw materials according to the European Pharmacopoeia and national pharmacopoeias of European countries.

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Biotransformation of hydroquinone to arbutin in plant in vitro cultures - preliminary results

67%

Skrzypczak-Pietraszek E., Szewczyk A., Piekoszewska A., Ekiert H.

Acta Physiologiae Plantarum

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2005

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tom 27

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nr 1

Cells from Echinacea purpurea (L.) Moench. (Asteraceae), Exacum affine Balf. f. (Gentianaceae), Melittis melissophyllum L. (Lamiaceae), Ruta graveolens L. and Ruta graveolens ssp. divaricata (Tenore) Gams. (Rutaceae) agitating cultures perform a biotransformation reaction on exogenously supplied hydroquinone into its β-D-glucoside – arbutin, product with valuable medicinal and cosmetic properties. The maximum content of arbutin (determined by HPLC) in the biomass from investigated cultures is 4.01; 3.44; 1.79; 2.48 and 5.07 g/100 g d.w., respectively. Nothing but Ammi majus L. (Apiaceae) cultures contain trace amounts of the product. Arbutin is accumulated in cells; it is occasionally found in media only in vestigial amounts. In most of the investigated cultures the efficiency of the biotransformation process is about 60 %.

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Badania nad wpływem fenoli na biogenezę wodną przy zastosowaniu Daphnia magna jako wskaźnika

43%

Cabejszek I., Just J.

Roczniki Państwowego Zakładu Higieny

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1959

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tom 10

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nr 1

Ograniczanie wyników

3 Acta Physiologiae Plantarum

1 Roczniki Państwowego Zakładu Higieny

1 Zeszyty Problemowe Postępów Nauk Rolniczych

2 Bergier K.

2 Ekiert H.

2 Gajewska E.

2 Krolicka A.

2 Piekoszewska A.

2 Polaszczyk B.

2 Sklodowska M.

2 Wielanek M.

1 Cabejszek I.

1 Just J.

1 Skrzypczak-Pietraszek E.

1 Szewczyk A.

1 Zubek S.

1 2010

1 2008

1 2007

1 2005

1 1959

Glucosylation of hydroquinone to arbutin by hairy roots of Physalis ixocarpa

Arbutin formation by hairy roots of Physalis ixocarpa treated with hydroquinone

Arbutin production in Ruta graveolens L. and Hypericum perforatum L. in vitro cultures

Biotransformation of hydroquinone to arbutin in plant in vitro cultures - preliminary results

Badania nad wpływem fenoli na biogenezę wodną przy zastosowaniu Daphnia magna jako wskaźnika